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High Strength Inconel Alloy UNS N06625 , ASTM Round Inconel 625 Bar / Inconel 625 Tubing

Categories Inconel Alloy
Brand Name: OEM
Model Number: Inconel 625
Certification: ISO, TPI
Place of Origin: China
MOQ: 20kg if in stock, if customized size 500KG.
Price: 20~40USD per kg, depends on the weight
Payment Terms: T/T, Western Union, paypal
Supply Ability: 10000kg per day
Delivery Time: 3~30 days depends if any in stock
Packaging Details: Packed well with export standard ( Bundled with waterproof woven and with plywood pallets )
Product name: Inconel 625
Melting range: 1290 - 1350 °C
Grade: Nickel Base Alloy
Density: 8.4 g/cm3
Brand No.: UNS N06625 / 2.4856
Elongation: 30 %min.
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    High Strength Inconel Alloy UNS N06625 , ASTM Round Inconel 625 Bar / Inconel 625 Tubing

    Inconel 625 / UNS N06625 / 2.4856 / round bar seamless pipe / sheet / wire / Tube / ring / flange

    Inconel Alloy 625 bar (UNS designation N06625) is a Ni-Cr based superalloy that possesses high strength properties and resistance to elevated temperatures. It also demonstrates remarkable protection against corrosion and oxidation. Its ability to withstand high stress and a wide range of temperatures, both in and out of water, as well as being able to resist corrosion while being exposed to highly acidic environments makes it a fitting choice for nuclear and marine applications.

    Inconel 625 was developed in the 1960s with the purpose of creating a material that could be used for steam-line piping. Some modifications were made to its original composition that have enabled it to be even more creep-resistant and weldable.

    Because of this, the uses of Inconel 625 have expanded into a wide range of industries such as the chemical processing industry, and for marine and nuclear applications to make pumps and valves and other high pressure equipment.

    Inconel 625 has a high level of pitting and crevice corrosion resistance to chloride contaminated media, such as sea water, neutral salts and brines. Alloy 625 is used in chemical processing, aerospace and marine engineering oil & gas, pollution control equipment and nuclear reactors.



    Chemical composition


    Mechanical properties:(Minimum value at 20°C)

    Tensile Strength


    Yield Strength



    σ5 /%




    ASTM B446

    ASTM B564

    ASTM B443

    ASTM B446

    ASTM B444

    ASTM B704

    ASTM B705

    Inconel 625 was designed as a solid solution strengthened material with no significant microstructure. This holds true at low and high temperatures, but there is a region (923 to 1148 K) where precipitates form that are detrimental to the creep properties,and thus the strength, of the alloy. Under any creep conditions (high temperature with an applied stress), M23C6-type carbides form at the grain boundaries. When tested at 973 K, γ” precipitates begin forming. These γ” phase precipitates are ordered A3 B type with a composition of Ni3(Nb, Al, Ti) and a tetragonal crystal structure.They form a disk-shaped morphology and are coherent with respect to the matrix.When tested at 998 K, a δ-phase precipitate begins forming which consist of Ni3(Nb, Mo)in an orthorhombic crystal structure. They form in a needle-like morphology and are incoherent with the matrix. Both of these precipitates can be completely dissolved back into the matrix when the sample is heated 1148 K. This leads to the ability to recover creep properties of the alloy to prolong the materials lifetime.

    Specifications and certifications include:

    • AMS: 5599, 5666
    • MS: 5837
    • ASME: SB 443 Gr 1, SB 446 Gr 1
    • ASTM: B 443 Gr 1, B 446 Gr 1
    • EN: 2.4856
    • ISO: 15156-3
    • NACE: MR0175-3
    • UNS: N06625
    • Werkstoff: 2.4856

    Heat Treatment

    Heat Treatment Inconel 625 is usually strengthened by cold work, with annealing at

    temperatures between 1,700 and 1,900F as required to remove the effects of cold work.

    Although nominally a solid-solution alloy containing intergranular and intragranular

    carbide precipitates, Inconel 625 is not responsive to strengthening heat treatments.

    Solution heat treating at 2000 to 2200F dissolves almost all of the secondary carbides.

    The major effects of short-time annealing of hot-rolled bar of standard composition are

    to affect reductions in tensile strength and hardness.Typically, the annealing heat

    treatment most utilized for Inconel 625 is at 1800F.

    The mild annealed low carbon alloy 625 has been widely used in the chemical process industry. Its good corrosion resistance and high strength make it a thinner structural component.The 625 alloy can be used in contact with sea water and under high mechanical stress.Typical applications:

    1. Components of the chlorinated organic chemical process, especially in the use

    of acidic chlorides catalysts.

    2. Used for cooking machines and bleaching ponds in the pulp and paper industry

    3. Absorption tower, reheater, flue gas inlet baffle, fan (moist), agitator, guide plate

    and flue pipe in flue gas desulfurization system.

    4. Equipment and components for manufacturing applications in acidic gas environments

    5. Acetic acid and acetic anhydride reaction generators

    6. Sulfuric acid condenser

    Product item size

    Bar ( Round)Φ5.5~250mm
    Bar (Square)40~240mm*40~240mm
    Seamless Pipe0.2mm~508mm(OD)*0.5mm~18mm(WT)
    Welded Tube0.5mm~120mm(OD)*0.05mm~10mm(WT)

    Our Service For You

    Pre-sale Service
    1. Sample can be offered with sample charge and courier fee by buyer's side.
    2. We have full stock,and can deliver within short time.Many styles for your choices.
    3. OEM and ODM order are accepted, Any kind of logo printing or design are available.
    4. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you
    5. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.

    After you choose
    1. We will count cheapest shipping cost and make invoice to you at once.
    2. Check quality again, then send out to you at 1-2 working day after your payment,
    3. Email you the tracking no, and help to chase the parcels until it arrive you.

    After-sale choose
    1. We are very glad that customer give us some suggestion for price and products.
    2. If any question,please contact with us freely by E-mail or Telephone.

    Look forward to your inquiry on our Inconel 625 / UNS N06625 / 2.4856 / round bar seamless pipe / sheet / wire / Tube / ring / flange.

    Product Tags:

    inconel alloy 718


    inconel 602 ca

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